The question pertains to identifying the correct set of terminals used for connecting a Field Effect Transistor (FET) in a circuit. Let's evaluate each option:

1. Emitter, Collector, Base: These terminals are associated with Bipolar Junction Transistors (BJTs), not FETs. BJTs rely on both electron and hole charge carriers.
2. Positive, Negative, Neutral: These terms typically refer to electrical power supply polarities or three-phase AC power lines. They are not specifically related to transistors.
3. Anode, Cathode, Grid: These terminals pertain to vacuum tubes and certain kinds of semiconductor devices like thyristors. They are not relevant to FETs.
4. Gate, Drain, Source: These are the correct terminals for a Field Effect Transistor (FET). The "Gate" controls the channel conductivity between the "Source" and "Drain".

Based on the above explanations, the correct answer is Gate, Drain, Source as these are the standard terminal names used for FETs.

Explanation: In an FET, the Gate (G), Drain (D), and Source (S) are fundamental terminals:

• Gate: This terminal is used to control the current flowing between the Drain and Source. It does so by altering the electric field within the semiconductor.
• Drain: The terminal where current exits the transistor.
• Source: The terminal where current enters the transistor.

FETs are voltage-controlled devices, meaning that they are controlled by voltage applied to the Gate, as opposed to BJTs which are current-controlled.

Thus, Gate, Drain, Source is the correct set of terminals used for connecting a Field Effect Transistor in a circuit.